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8d288300c4
Tests for the regression from 7e6bb04db ("OpcodeDispatcher: Extract
CalculatePF"). This fails on main but passes with this PR.
Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
67 lines
1.0 KiB
NASM
67 lines
1.0 KiB
NASM
%ifdef CONFIG
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{
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"RegData": {
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"RAX": "0x0000000cafecafe"
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}
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}
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%endif
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; This test checks that PF is not modified with zero shifts
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; First, some smoke tests: nonzero shifts should set PF as expected
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; 0b111_1111_1000 has odd parity
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mov eax, 0xff
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mov cl, 0x3
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shl eax, cl
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jpe fexi_fexi_im_so_broken
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; 0b11_1111_1100 has even parity
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mov eax, 0xff
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mov cl, 0x2
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shl eax, cl
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jpo fexi_fexi_im_so_broken
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; At this point, parity is even
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; So now test that PF is preserved across zero shifts, regardless of output parity.
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mov cl, 0
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mov eax, 0x0f
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shl eax, cl
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jpo fexi_fexi_im_so_broken
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mov eax, 0x0e
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shl eax, cl
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jpo fexi_fexi_im_so_broken
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mov eax, 0x1f
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shr eax, cl
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jpo fexi_fexi_im_so_broken
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mov eax, 0x1e
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shr eax, cl
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jpo fexi_fexi_im_so_broken
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mov eax, 0x2f
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sal eax, cl
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jpo fexi_fexi_im_so_broken
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mov eax, 0x2e
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sal eax, cl
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jpo fexi_fexi_im_so_broken
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mov eax, 0x3f
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sar eax, cl
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jpo fexi_fexi_im_so_broken
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mov eax, 0x3e
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sar eax, cl
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jpo fexi_fexi_im_so_broken
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; success code
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mov rax, 0xcafecafe
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hlt
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; failure, rax != 0xcafecafe
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fexi_fexi_im_so_broken:
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hlt
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